Martin Audio CDD8BTX-WR – IP54 Outdoor 8" 70V Coaxial Speaker Black

Product Overview

The Martin Audio CDD8BTX-WR is an IP54-rated outdoor coaxial loudspeaker in black finish, incorporating a 70V/100V line transformer for deployment in large-scale distributed commercial AV systems. This weatherized commercial speaker features an 8" (200mm) Coaxial Differential Dispersion driver and is suited to sheltered outdoor on-wall AV installation across transport hubs, outdoor entertainment venues, hotel exterior areas, and outdoor stadium concourses. The black finish blends discreetly with dark architectural surfaces, exposed steel, and canopy soffits. Cabinets can be daisy-chained on the 70V/100V line via the built-in dual cable gland, improving amplifier efficiency and reducing wiring infrastructure. It is the black-finish complement to the CDD8WTX-WR; the 8Ω variant is the CDD8B-WR.

Product Description

Martin Audio's Coaxial Differential Dispersion technology positions the 1" (25mm) exit HF driver at the acoustic centre of the 8" (200mm) LF cone for point-source summation of both frequency bands. This coaxial arrangement delivers consistent off-axis frequency response and controlled coverage across the horizontal and vertical dispersion pattern. The user-rotatable coaxial drive unit allows the coverage ellipse to be re-oriented for horizontal or vertical cabinet placement without any enclosure modification, giving the installation designer full flexibility in coverage aiming to match the venue geometry.

IP54 environmental certification — dust-tight protection and resistance to water splashing from any direction — qualifies the CDD8BTX-WR for sheltered outdoor environments including covered terraces, transport canopies, exterior hotel areas, and outdoor stadia concourse positions. The operating temperature range of −20°C to +70°C ensures reliable operation across a wide range of climate conditions. The UPM Formi composite enclosure provides the acoustic and mechanical durability required for outdoor deployments subject to thermal cycling and humidity variation.

The integrated 70V/100V transformer connects via a 5-way weatherproof connector, and the dual cable gland input panel allows multiple CDD8BTX-WR cabinets to be daisy-chained directly on the 70V/100V line without external breakout hardware. The screw-free zinc-plated weatherised grille with powder-coated and weatherised backing maintains the IP54 rating while allowing tool-free removal for driver servicing. For 8Ω direct-drive amplifier applications, see the CDD8B-WR. Browse the full Martin Audio collection at Creation Networks.

Key Features

• IP54 Weatherized Enclosure — Dust-tight and splash-resistant for sheltered outdoor on-wall AV installation, certified per IEC 60529.
• Black Architectural Finish — Discreet black UPM Formi composite enclosure suits dark walls, canopy soffits, and exposed architectural steel.
• Integrated 70V/100V Transformer — Enables high-efficiency distributed audio system design with multiple cabinets on a single amplifier channel.
• 5-Way Weatherproof Transformer Connector — Secure, weatherproof 5-way connector for reliable outdoor distributed system connections.
• Dual Cable Gland Daisy-Chain — Built-in dual cable gland enables direct cabinet-to-cabinet 70V/100V line wiring without breakout boxes.
• Coaxial Differential Dispersion Technology — 8" LF / 1" exit HF coaxial driver delivers point-source coverage with consistent off-axis frequency response.
• User-Rotatable Driver — Coverage pattern re-oriented for horizontal or vertical mounting without tools or enclosure modification.
• UPM Formi Composite Enclosure — Acoustically and mechanically superior to ABS for demanding sheltered outdoor environments.
• Screw-Free Weatherised Grille — Zinc-plated mild steel grille with powder-coat and weatherised backing; tool-free removal for servicing.
• Operating Temperature −20°C to +70°C — Rated for a wide climate range without derating.

Typical Applications

• Transport Hubs — Covered platform areas, station concourses, and airport gate lounges on 70V distributed audio.
• Outdoor Entertainment Venues — Covered outdoor stages, amphitheatre concourses, and festival site fill speaker positions on 70V distribution.
• Hotel Exterior — Pool decks, courtyard areas, sheltered restaurant terraces, and porte cochère installations on 70V distributed systems.
• Stadium Nearfield Fill — Under-tier or concourse fill in outdoor stadia on 70V line distribution.
• House of Worship Exterior — Covered courtyard and outdoor worship space on 70V distributed audio.
• Theme Parks — Queue-line audio, attraction area ambience, and zone-paged outdoor distributed systems.
• Convention Centres — Covered exterior walkways, foyer, and pre-function area background music on 70V systems.

Technical Specifications

Full technical specification sheet available — contact Creation Networks for the complete Martin Audio CDD8BTX-WR data sheet.

Frequently Asked Questions

What does IP54 mean for the CDD8BTX-WR?

IP54 per IEC 60529 indicates dust-tight protection (digit 5) and resistance to water splashing from any direction (digit 4). Sheltered outdoor installation is required; the cabinet is not rated for direct rain exposure or submersion.

What mounting options are available?

The CDD8BTX-WR features threaded inserts for standard commercial wall and ceiling bracket systems. The user-rotatable coaxial driver allows horizontal or vertical coverage orientation to match cabinet placement.

What amplifier is required for 70V/100V operation?

A constant-voltage 70V or 100V distributed audio amplifier is required. Select the appropriate transformer tap to match the target SPL per zone. Multiple CDD8BTX-WR cabinets can be daisy-chained via the dual cable gland inputs on a single amplifier channel.

What is the 5-way connector used for?

The 5-way weatherproof connector carries the 70V/100V line signal to the integrated transformer. The dual cable glands pass the line through to the next cabinet in the daisy chain without external junction boxes.

How does the CDD8BTX-WR differ from the indoor CDD8?

The WR suffix indicates IP54 environmental certification, weatherised grille backing, weatherproof connectors, and weather-resistant mounting hardware not present on the indoor CDD8.

Can multiple CDD8BTX-WR cabinets be daisy-chained?

Yes. The built-in dual cable gland passes the 70V/100V line signal directly to the next cabinet. Ensure total tap wattage of all chained cabinets does not exceed the amplifier’s rated output.

Is a white version available?

Yes. The CDD8WTX-WR is the white-finish equivalent with identical technical specifications.

Is an 8Ω non-transformer version available?

Yes. The CDD8B-WR (black) and CDD8W-WR (white) are 8Ω passive variants for direct amplifier connection without a distribution transformer.